I just installed Ubuntu on my MSI ge60-20c and recognized the wireless-driver not working well. After some searching I found out it's a common problem and some people managed to get a proper driver working. Though I couldn't find any driver working for 3.8.0-19-generic :(

I did all the steps, no errors occured. Still the driver isn't working right. Just to make sure you didn't get me wrong: The wireless-chip did work! But the driver seemed to be buggy since signal-strength is jumping from full to 0 conitnuously. No problem if I'm next to the router, but a problem indeed if there's a distance between router and laptop! And even though no errors occured using your solution the signal-strength is still jumping. Really weird!
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FinnhaxOct 13 '13 at 20:11

Yeah, it sounds like there is a bug there... open a new issue at github.com/lwfinger/rtl8723au/issues and provide as much detailed information as possible. This includes dmesg, lshw -c network, and lsusb.
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RichardOct 14 '13 at 1:33

Probably the problem is: I have a 8723AE, while this driver is for the 8723AU?
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FinnhaxOct 15 '13 at 18:02

The 8723AU driver seems to support the 8723AE chip as well.
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RichardOct 17 '13 at 12:07

No errors occured while modifying, building or installing the proprietary driver as described in the article. But when I try "sudo modprobe -v rtl8723e" it tells me: "ERROR: could not insert 'rtl8723e': Invalid argument"
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FinnhaxNov 8 '13 at 1:19

You may try to reboot after executing "make install" so that the new module is loaded correctly. If executing "lsmod | grep rtl8723e" gives you something back after the reboot then you've correctly installed the new driver. You'll have to repeat the compiling and installing after every kernel upgrade.
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jericoNov 8 '13 at 11:19